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No. 749,631. PATBNTED JAN. 12, 1904. E. QUENARD.

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No. 749,631. PATENTED JAN. 12, 1904 3. QUENARD.

PAPER BAG MACHINE.

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Tu: uonn s PETERS co wumwuma, wasmusmw n c No. 749,631. PATENTED JAN. 12, 1904.

E. QUENARD. PAPER BAG MACHINE.

APPLICATION FILED OUT. 7, 1902.

N0 MODEL. 16 SHEETS-SHEET 16 F1525 v FIELZL'L Fig-g5 y y 7 F113;; FII J UNITED STATES Patented January 12, 1904.

PATENT OFFICE.

EMILE QUENARD, .OF PARIS, FRANCE, ASSIGNOR TO LA sooIETE QUENARD FRERES ET FILs, oF PARIS, FRANCE.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 749,631, dated January 12, 1904. Application filed October 7, 1902. Serial No. 126,354. (No model-l Tonal] whom it may concern/.-

Be it known that I, EMILE QUENARD, a citizen of the Republic of France, and a resident of Paris, France, have invented a new and useful Improved Machine for the Manufacture of Paper Bags, which is fully set forth in the following specification.

This invention relates to an improved machine for the manufacture of paper bags, and has for its object to provide a machine for manufacturing paper bags in which all the actions of the machine are entirely automatic, excepting the supply of paper sheets which are thereafter to be formed into bags in the same, and in which the paper sheets are placed at one end of the machine and then by successive stages of operation adhesive applied to one side edge, the sheet folded, and the two sides edges joined, one end out, adhesive applied to one end edge, the end edge folded and pressed, thereby forming the bottom of the bag, and the bag finally conveyed in its finished state to a conveyer, from which it may be either taken to be printed or stored away until desired to be used.

For this purpose the invention consists of a paper-bag machine comprising means for raising each separate sheet of paper to a set of conveying-rollers, means for applying adhesive to one side edge of the sheet of paper, means for folding over the sidesof the sheet of paper, so that the side edge to which adhesive hasbeen applied will overlap the other side edge, means for pressing these overlappingside edges to cause the same to adhere to each other, means for conveying the so formed bag-body to one platen of a rotatable platen-Wheel, which at each successive intermittent part of its rotation subjects the bagbody successively to means for causing an incision in one of the end edges of the bag-body, means for applying adhesive to these end edges, means for folding over the corner of this end of the bag-body so as to form the bag-bottom, and, finally, means for withdrawing the bag from the platen of the wheel and pressing the bag-bottom, so as to cause an efficient adhesion of the turned-over corners of the same, after which it is ready to be printed or stored for further use.

The invention consists, further, of certain details of construction and combinations of parts,

which will be more fully described hereinafter vation of the interior of the frame of the machine. Fig. 3 is a view of the entrance end of the machine, showing details of construction of the table which supports the sheets of paper ready to be passed through the machine. Fig. 4 is a detail view of the machine, showing the paper-sheet-supply table and the operative parts employed to raise each sheet of paper and to apply adhesive to one side edge of the same for joining the side edges, the sheet forming then the body of the bag. Fig. 5 is a vertical transverse section on line 5 5 of Fig. 4, showing the reservoir and operative parts for applying the adhesive to the side edges. Fig. 6 is a detailview of the parts, as seen from line 6 6 of Fig. 1, for folding over the sides of the sheet of paper, so that the side edge to which adhesive has been applied will overlap the other side edge, so as to form the body of the bag. Fig. 7 is a plan view of Fig. 6. Fig. 8 is an elevation, seen from the side 6, of the feedingrolls for conveying the bag-body from the folder mechanism shown in Figs. 6 and 7 to a platen-wheel. Fig. 9 is a vertical transverse section on line 9 9 of Fig. 8, showing the feedroll and mechanism employed for conveying the paper body. Fig. 10 is a detail view in elevation seen from the side a, showing the parts used for facilitating the entrance of the bag-body to a platen of the platen-wheel. Fig. 11 is a view in elevation of the driving mechanism of the platen-wheel. Fig. 12 is a detail view of a platen of the platen-wheel, the cheek of the wheelon the side a being removed. Fig. 13 is a plan view of a platen,

operate to effect the folding in of the first corner of the bag-body. Fig. 14 is an elevation of the cutting mechanism seen from the side a, which effects an incision in the end edge of the bag-body after the same has been moved one-twelfth of a revolution by the platen-wheel. Fig. 15 is a plan view of the cutting mechanism shown in Fig. 14. Fig. 16 is an elevation, seen from the side a, of the parts used for applying adhesive to the end edges of the bottom of the bag-body after the bag-body has been moved another twelfth of a revolution by the platen-wheel. 'Fig. 16 shows a detail view of the reservoir and spongecovered brush for applying adhesive to the end edges of the bag-body. Fig. 17 is a side elevation of the adhesive-conveyer by means of which adhesive is applied to the end edges of the bag. Fig. 18 is an end elevation of Fig. 17. Fig. 19 is a plan view of Fig. 17 Fig. 20 shows a detail view of the platen for the preliminary folding of the end edges of the bag-body after one twenty-fourth of a revolution of the platen-wheel after having left the adhesive-applying means. Fig. 2O shows the platen for the final folding of the end edges and one corner. Fig. 21' is a front elevation of the platen shown in Fig. 20 in the direction of the arrow 502 of Fig. 20. Fig. 22 is a rear elevation of the platen shown in Fig. 20 in the direction of the arrow 503 of Fig. 20. Fig. 23 shows an elevation of the parts used for stripping the bag-body from the platen of the platen-wheel, conveying the same to rollms for effecting the folding in of the second corner of the bag and pressing the folded end edges having adhesive applied thereto, so as to cause an efiective joining of the same for forming the bottom of the bag. Fig. 24 is a plan view of Fig. 23', and Figs. 25 to 31 show the bag in the various stages of operation through which it passes in my improved paper-bag machine.

Similar characters of reference indicate corresponding parts.

The various stages of operation of my improved machine are so arranged that a sheet of paper is automatically fed in and carried forward between the two cheeks a and b of my.

machine and -thereafter passes successively through each of the following operations: application of adhesive to one side edge of the sheet of paper; folding and pressing over the side edges of the sheet of paper, so as to form the body of the bag; placing the bag-body on a platen of a platen-wheel, rotating the same, and successively, after one-twelfth of a revolution, cutting the end edge of the bag-body for the more convenient folding of the same; applying adhesive to these end edges after another twelfth of a revolution; subjecting the side edges to a preliminary folding after a twenty-fourth of a revolution to form the bottom of the bag, and to a final folding and turning of one corner of the bottom after another twenty-fourth of a revolution, and, finally, after a quarter of a revolution of the platenwheel stripping the paper-bag body from the platen of the wheel, then pressing the bottom for causing an effective adhesion of the foldedover side edges and turning of the other corner, and finally delivering the complete bag from the machine.

Referring to the drawings, 1 in Figs. 1, 3, and 4 represents amovable table, on which are arranged a pile of sheets of paper suitably cut to the proper size, and 3 represents an aspirator provided at its lower part with two cupping-holes 230, and to which is given a vertically-reciprocating movement. The aspirator 3 is connected by a caoutchouc or rubber tube 200 with a cylinder of a pump 4, in which a piston 227 is reciprocated by a rod 17, which is connected with a bell-crank lever 18 and slotted rod 229, actuated by an eccentric 19 on shaft 14. (Shown in Fig. 2.) When the piston of the pump 4 descends, a suction action is produced under the cupping-holes 230 of the aspirator 3. The reciprocating movement of the aspirator 3 (shown in Fig. 4) is caused by a cam c, keyed to the shaft 12, which cam acts on an antifriction-roller 201, mounted on a rod cl, which is coupled to a lever e, to the other end of which are connected two vertical rods f, attached to the aspirator 3. The table 1, (shown in Fig. 3,) locked in its normal position, is under the action of a spring 2, which always tends to raise it. The releasing of the table is effected by the rotation of the cam 5, (shown in Fig. 4,) keyed to the shaft 12. The shaft 12 is rotated by means of the powershaft 14 (shown in Fig. 2) and intermediate mechanism, comprising the gears 84, mounted on shaft 14, gear 85, (shown in Fig. 1,) meshing therewith, mounted on a transverse shaft 83, (shown in Fig. 2,) which is provided with a beveQl-wheel meshing with a bevel-wheel 16 of a longitudinal shaft 13, at the other end of which is arranged the bevel-wheel 15, meshing with the bevel-wheel 30 of the shaft 12. The cam 5 acts on the antifriction-roller 6, mounted on one end of a lever 7, the other end of which exercises a tractive efiort upon a slide-bar 8, which is thrust forward by a spring 225 when the high surface of the cam 5 is not in contact with the roller 6 into engagementwith a rack formed on a bar 10, extending from the table 1. The end of the slide-bar 8 is provided with teeth which mesh with the teeth of the rack 9. Abar 203 connects the bar 10 with a lever or pedal 11, which when pressed will cause the table 1 to be lowered, although locked, when the table is to be supplied with a fresh pile of sheets of paper to be formed into bags. When the slide-bar 8 is displaced, so as to release the teeth of the same from the teeth of the rack 9, the rod 10 is raised by the action of the spring 2 (shown in Fig. 2) andv causes thereby the table 1, with the sheets of paper thereon, to ascend. The

cam c, mounted on the shaft 12, which causes the reciprocation of the aspirator 3, is so formed and the suction of the pump so timed that when the table ascends the aspirator descends, and simultaneously with the meeting nected by a pivot-rod 22 with a connecting- 1 per.

rod 21 of an eccentric 231, which causes the carriage 20 to move under the aspirator when the same has reached its highest position simultaneously with the discontinuance of the suction action and descending action of the pump,'whereby a compression action takes place in the aspirator, which causes the sheet of paper to be thrown or dropped on the carriage 20. The carriage 20, continuing its movement toward the right, carries the sheet of paper beneath a feeding device which comprises two rolls 23 and 24. (Shown in Fig. 4.)

The movement of the carriage 20 causes the sheet of paper to pass between two plates which are cut away so as to permit the rollers 23 and 24 to operate on the sheet of paper, so as to permit a disk 25 to deposit ad:

hesive on one longitudinal or side edge 9 of the sheet of paper. (Shown in Fig. 25. The disk 25 (shown in Figs. 4 and 5) is keyed to the shaft 12 and is provided with a peripheral groove which receives the adhesive by means of a server 27, dipping in the fluid adhesive in the reservoir 26 and transferring it to an intermediate roller or carrier 28, which in turn transfers it to the groove of the disk 25. In

tel-meshing pinions are keyed on the spindles of the carrier 28 and theserver 27 to cause a proper movement of the same. Theserver 27 is rotated in the reservoir 26, containing the adhesive, by means of a pulley 29, keyed to the spindle a of the server 27 and which is rotated by means of a belt 232 by a pulley 30, keyed to the driving-shaft 12. Thus simultaneously with the feeding forward of the paper sheet between the rolls 23 and 24 adhesive is applied to one side edge g of the sheet of paper. (Shown in Fig. 25.) l

The sheet of paper is continuously fed forward by the rolls 23 and 24 and emanating from the same is placed under a plate 31, (shown in Fig. 6,) which is slightly narrower than one-half the breadth of the sheet of pa- The two side edges 9 and g or wings of the sheet of paper, which are not covered by the sheet 31, rest on two panels 32, which are situated in a plane somewhat lower than the plane of the plate 31. These folder-panels 32 are caused to describe an arc of a circle around their pivots 37 by means of rollers 33, which are fixed to a plate 251, adapted to reciprocate vertically by means of a rod 36, at-

tached to the plate 251, which rod 36 is moved by a lever 35, provided with a roller 205, which is actuated by a cam 34, keyed to the longitudinal shaft 13. The panels 32 are raised and so moved inwardly as to displace the pivots of the panels 32 and cause the panel 32 shown on the right hand of Fig. 6 to move toward the left hand and cause a corresponding movement of the left-hand panel 32 by means of a notched cam 39 engaging a roller 40, fastened to a lever 41, which is keyed to a shaft 42, journaled in the frame of the ma- 7 chine. 391, to which is pivoted a rod 392, connected with an elbow lever 393 pivoted at 394, which lever is connected with the left-hand panels 32, so as to operate the same in conjunction with the righthand panels. The ends or rollers 38 of folder-panels 32, when thus moved, roll and rest on the two longitudinal side edges of the sheet of paper, the movement of the panels 32 and rollers 33 being so timed that the side edge g, covered with adhesive, is below the other side edge Thus the two panels 32 by their positions above the plate pass over the plate 31 and completely fold the side edges .of the sheet of paper by first raising the wings or side edges of the sheet of paper and then folding them around the plate 31, which acts as a mandrel. At this moment, when thepanels 32, with the rollers 38, hold down the side edges or wings of the sheet of paper, the lower one of which is covered with adhesive, a rectangular plate 43 is caused to descend between the rollers 38 of the panels 32' and to press the two side edges tightly together, so as to cause an efficient adhering of the same. The

On this shaft 42 is also keyed an arm pressure-plate 43 is provided with a vertical sheet of paper now forms the bag-body and resembles Fig. 26. The bag-body is moved by the plate 31 forwardly and taken therefrom by two rollers 50 and 51 (shown in Figs. 8 and 9) of a carriage 49, which acts similar to the carriage 20 before described, and at one end of its horizontal movement seizes the bagebody and carries it forward toward the right hand during the second movement of the carriage. A lever 52, oscillating about a point 53 and deriving its motion from a lever 54, in mechanical connection with the shaft 13,

.by means of a pair of bevel-pinions 55 and 56,

(shown in Fig. 2,) gives the carriage 49 the horizontally-reciprocating movement. The pulley 57, keyed on the spindle of. the lower roller 50, derives its motion from the pulley 59 through a suitable transmission-belt 590. (Shown in Fig. The rotary motion impart- IIO &

ed to the roller 50 is transferred to the roller 51 by means of intermeshing pinions 59 and 60, of which pinion 59 is keyed to the shaft of the roller 50 and pinion 60 is keyed to the shaft of the roller 51.

So far the sheet of paper from the time it was lifted by the aspirator 3 and deposited on the carriage 20 has continuously proceeded through the machine in the same horizontal plane. In order to effect the cutting out, applying adhesive to, and folding of the bottom, and also in order to effect the folding of the first corner, an arrangement is provided by means of which the bag-body is successively subjected to the mechanism which causes the cutting out, applying adhesive to, and folding of the bottom, and folding of the first corner of the bag.

By means of the rollers 59 and 60 the bagbody is moved toward a platen of the platenwheel 252, (shown in Fig. 12,) which is pro vided with twelve radial platens 72.

The wheel 252 (shown in Figs. 8, 12, and 13) comprises platens 7 2, provided with two cheekpieces 69 and 70, which are keyed onto the shaft 71. The platen 72 is a thin plate of metal fastened to the hub 73 of the wheel 252 and so arranged that between its edges and the cheek-pieces 69 and a sufficient space 241 (shown in Fig. 13) is left so as to permit the bags to slide over the platen, similar to a mandrel. At the radial outward point of the platen 72 an angular part of about ninety degrees extends beyond the cheek-pieces 69 and 7 O, the apex of which is so arranged as to be exactly in the axis of the path followed'by the bag. On one side of the platen shown in Fig. 12 is arranged a plate 74, which is similar to the platen 72, but which is pivotally supported near the hub of the wheel at 75. On the other side of the platen 72 is another plate 76, pivoted at 77 and also similar to the platen 7 2, but somewhat shorter than the plate 74, as shown in Fig. 12. The object of these plates 74 and 76 is to retain the bag on the platen 72 during the rotation of the wheel. For this purpose each plate 74 is provided with a springblade 343, which is engaged bya cam 279 on a spindle passing through the cheek-piece 69. The outer end of the spindle is provided with av lug 27 8, which engages with an antifrictionroller suitably mounted on the frame of the machine, so as to cause the movement of the lug 278 and cam 279 at the proper time for the opening or closing of the plate 74. Similarly, the plate 76 is provided with a spring-blade 243, adapted to be engaged by a cam 79 on a spindle, to the free end of which a lug 78 is secured. This spindle passes through the opposite cheek-piece 7 O, as it is preferable that all lugs to be used for actuating the cams 279 engaging the spring-blades of one plate 74 be arranged on the outer side of one of the cheekpieces 69, while all the lugs to be used for actuating the cam 79 engaging the spring-blades of the other plate 76 be arranged on the outer side of the other of the cheek-pieces 7 O. The plates 74 and 76 are opened when their springblades are not engaged by the cams 279 and 79 by a spring 81, which is attached at one end to the plate 76 and at the other end to the plate 74 of the adjacent platen. The cams 79 and 279 are so formed that the springs 81 open the plates 74 and 76 just when the bag body is fed forward by the rollers 59 and 60.

To insure the placing of the bag-body on one of the platens 72, a movable shutter 61 (shown in Fig. 10) is mounted on a hinged pin 62, which is supported on the end of a cutaway plate 63, onto which the bag-body passes when leaving the mandrel-plate 31 and fed forward by the rollers 50 and 51. The movable shutter 61 causes the bag to cover the platen 72 of the platen-wheel 252 in a similar manner as the paper bag covered the mandrelplate 31 before described, when the folding and sticking together action took place. The action of the movable shutter 61 is caused by a cam 64, keyed to the shaft 13, actuating a rod 65, carrying an antifriction-roller 66 and pivoted to a bent lever 67, keyed to the shaft h, the other end of which lever 67 is connected with a coupling-bar 68, pivoted to the movable shutter 61, which may be returned to its vertical or downward position by any suitable spring action, so as to permit the passage of the platens of the platen-wheel. When the bag-body has entered one platen of the platen-wheel as far as the hub 7 3,and so covers the platen 72, the plate 61 is lowered by a suitable spring, which is not shown in the drawings, and the function of the plate 61 is ended. The cams 79 and 27 9 when the platenwheel is rotated press the spring-blades 243 and 343, and so causethe plates 74 and 76 to hold the bag-body securely to the platen. The wheel is rotated by means of a ratchet-wheel, (shown in Fig. 11,) keyed to the spindle 71 and rotated by means of an eccentric 82, mounted on the shaft 83, which is connected with the motor-shaft through two pinions 84 and 85. (Shown in Fig. 1.) Applied to the shaft 71 is a radial lever 82 carrying a pawl 82, pivoted thereto, as shown in Fig. 11. The pawl 83 serves to permit the rotation of the platenwheel 252 in but one direction. The motion of the shaft 83 causes the intermittent rotation of the shaft 71 and the platen-wheel 252 mounted thereon and is so arranged as to cause the wheel to be moved through onetwelfth of a revolution at a time. During the first one-twelfth of a revolution the plates 74 and 76 are both closed upon the bag-body, which envelops the platen 7 2,-and consequently holds the bag-body tightly to the same.

In order to obtain a perfect folding of the bottom of the bag, it has been found desirable and necessary to cut a notch in the bagbody at its lower part or end edge, which is thereafter to form the bottom, similar to IIO 

